William Naylor
NPI 1134580475 · Case Manager/Care Coordinator · El Monte, CA
William Naylor is a Case Manager/Care Coordinator provider in El Monte, CA (NPI 1134580475).
Provider details
- NPI number
- 1134580475
- Entity type
- Individual
- Primary specialty
- Case Manager/Care CoordinatorOther Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Other Service Providers
Behavioral Health & Social Service Providers
- Case Manager/Care Coordinator171M00000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 2307 W. 6th St.La, CA 90057Phone: (213) 351-2800
Registry dates
- Enumerated
- 2016-03-15
- Last updated
- 2018-03-17
Frequently asked questions
- What is William Naylor's NPI number?
- William Naylor's National Provider Identifier (NPI) is 1134580475, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Naylor's specialty?
- William Naylor is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).
- Where is William Naylor located?
- William Naylor's practice location on file with NPPES is 3430 Cogswell Rd, El Monte, CA 91732-2785.
- What is William Naylor's phone number?
- The practice phone number listed in the NPPES registry for William Naylor is (626) 453-3406.
- Is William Naylor's NPI active?
- Yes — William Naylor's NPI (1134580475) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.